97 RON petrol

[runner911]

Anyone tried the 97 RON petrol on sale at Sainsburys and Tesco ?

If so is there a discernible performance difference between that and 95 RON ?

Can't seem to get Shell Optimax down here in Plymouth so that's not an option.

[JKay]

My mate uses the premium fuel from Tescos on his 2004 C2 Cab, and he says he prefers it to OPTIMAX. Says with OPTIMAX his engine idles too low but with the TESCO Preimium stuff it runs much better

[egbert]

i rate the tesco 99 ron very highly

[Crimp a Length]

higher the RON the better mine runs, terrible on 95 RON, normally drinks Shell vmax, not tried the Tesco's 99RON though, is it buy one goet one free!

[semprini27]

Yep, Tesco 99 is the nuts, closely followed by Shell Optimax / Vpower or whatever it's called now.

[Gio G]

I believe that the super unleaded 97Ron in Sainsburys is in fact BP Ultimate...

[Lurking Lawyer]

Gio G said:

I believe that the super unleaded 97Ron in Sainsburys is in fact BP Ultimate...

It may well come from a BP refinery but I doubt very much that it has the same detergents and additives as Ultimate.

Tesco's 99 RON seems to be good stuff - my 993 seemed to perform in much the same kind of way to its usual diet of V Power when I recently put a couple of tanks of Tesco 99 in. It's several pence per litre cheaper though - and a further 5ppl cheaper still when Tesco are handing out vouchers for spending more than £50 in store.

Shame it's not available everywhere.

[TOENHEEL]

I used tesco with my Boxster and it made a vast improvement on the standard stuff. Stay clear of ASDA fuel my car seemed to knock like hell with ASDA 95.

[tim79]

I'm sure I read in this or last month's EVO about some independent British Petroleum (no, not BP...) organisation-or-whatever survey of fuels for sale today in terms of overall quality/performance/emissions etc etc and it concluded that Tesco's Finest was the best you could buy on the forecourt at the moment - then Optimax, then BP Ultimate I believe (no affiliation to Tesco's meself, honest). Out of interest, does anyone live near a BP station that sells their 102 RON stuff, and is it that different to their normal 97 RON stuff? (Sorry, being lazy, could have searched for a thread on that, just wondered if anyone knows of one to hand....)

[Lurking Lawyer]

tim79 said:

Out of interest, does anyone live near a BP station that sells their 102 RON stuff, and is it that different to their normal 97 RON stuff?

It IS different - but your car will only be able to take advantage of the extra octane if the ECU is programmed to do so. Turbo-ed cars are generally better able to do so than NA ones but it depends on what you've done to your own car. If it's a NA car with no ECU swap or tuning, I'd be surprised if you get any measurable performance boost over 97-99 RON fuel.

[997GT3]

I've only ever put Shell V-Power in my 997GT3. Do you think this Tesco 99 stuff would be better for the GT3?

[Lurking Lawyer]

Performance-wise, very little in it, I'd guess. Shell fuel probably has more in the way of proprietary detergents. Tesco fuel bumps up the RON by having around 5% ethanol content.